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What's the World's Tallest Building?

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In the last few decades, there's been a sort of arms race to build ever-taller skyscrapers. Which seven currently rank as the world's tallest buildings?

How Roller Coasters Work

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They don't have engines, brakes or accelerators. No, these amazing machines rely on physical, centripetal and gravitational forces to urge thrills, screams and that sinking stomach feeling we all love (and hate). Read more about the science of fun.

5 Green Methods of Transporting Goods

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The transportation sector is the second largest producer of carbon dioxide emissions is the U.S. Is it possible to reduce emissions without stiffing the importing and exporting of goods? You'll discover the answer in this article.

What are the pros of playing intramural sports?

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What are the pros of playing intramural sports? Visit HowStuffWorks to learn the pros of playing intramural sports.

How Eminent Domain Works

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Eminent domain allows the government to take your property without your consent and pay you fair value. Learn more about eminent domain and how it works.

How MREs Work

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Coalition troops have been surviving mainly on MREs (Meals Ready to Eat) for most of Operation Iraqi Freedom. Learn what these portable, adaptable and absolutely essential pieces of military technology are all about.

10 Earth Day Activities to Celebrate Our Planet

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Earth Day is the ideal time of the year to form new eco-oriented habits. Here are 10 things you can do to celebrate our planet all year long.

How Land Trusts Work

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Land trusts have been used for both good and bad. Find out the pros and cons of land trusts at HowStuffWorks.

Why Some Fans Fall to Their Deaths in America's Sports Arenas

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Why do fans fall to their deaths in sports arenas? Learn why fans fall to their deaths at HowStuffWorks Now.

What Caused the Dust Bowl?

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What if the land you relied upon simply blew away? In the 1930s, poor stewardship and crushing drought created black blizzards and an internal American exodus known as the Dust Bowl.

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